Improvement in machines for forging horseshoe-nails



4Shee'ts-Sheet'1. ,J. MIL-LS. MACHINE FOR FORGING HORSESHOE-NAILS.No.182,843, Patented. 0ct.3,1876..

".PUHS, PHOTD-LITHOGRAPHER, WASHINGTON, D. .C. v I

4 Sheets-Sheet 2.

J. M I L L S. M; MACHINE FDR FORGIN'G HORSESHQE-NAILS. *"11 N 0 182, 843 Patented. Oct. 3, 18 1 6.

WI NE SES r INVENTOR ATTORNEY6 N.PETERSv FNOTO-LITHOGHAPNER, WASHINGTON,D C

4 Sheets-Sheet 3.

J. MILLS. MACHINE FOR FORGING HORSESHOE-NAILS.

Patented 0ct.3,18'.76.

ATTORN EYS WITNESSES MPETERS PHOTO-LITHOGRAPHER. WASHNGTON n C.

4 Sheets-Sheet 4.

J. MIL-LS. MACHINE FOR FORGING HORSESHOE-NAILS. No.182,843.

Patented Oct. 3, 1876.

INVENTOR 'HLLQQ4,

WITNESSES ATTORN EYS NJFETERS PHOTO LHHQGRAPHER. WASHINGYON, n c

UNITED STATES PATENT CFFIGE.

JAMES MILLS, OF KEESEVILLE, NEW YORK.

IMPROVEMENT IN MACHINES FOR FORGING HORSESHQE-NAILS.

Specification formingpart of Letters Patent No. 182,843, dated October3, 1876; application filed July 7, 1876.

To all whom it may concern:

Be it knownthat I, J AMns MILLs, of Keeseville, in the county of Essexand State of New York, haveinvented certain new and useful Improvementsin Horseshoe-Nail Machine; andI do hereby declare thefollowing to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use it,reference being had to the accompanying drawings, which form part ofthis specification.

My invention relates to an improved horseshoe-nail machine.

Figure 1 is a side elevation of the machine. Fig. 2 is a plan view, withhammer-shaft removed. Fig. 3 is an end elevation of the machine Fig. 4,a plan view, with the necessary parts removed to show the position ofthe several cams. Fig. 5 is a view of the hammer carrying andoperatingshaft. Figs. 6 and 7 are views of the rod or pitman connectingshaft and striking-hammer detached. Figs. 8 and 9 are detail views ofthe hammer-shank and hammer. Figs. 10 and-l1 are detail side and frontviews respectively of the anvil and cutter carrier, with anvil andcutter in position. Fig. 12 is a sectional view of the above at-the line2 2 of Fig. 11. Fig. 13 represents endand top views of movable cutterand cutter-holder andframe, with screw for securing the same. Fig.14is alongitudinal section of the nail-blank griper, straightener, andreleaser, showing mannerof operation. Fig. 15 is an end view of above atz of Fig. 14. Fig. 16 is a planview of devices shown in Fig. 14, and ofnose-piece lever. Fig. 17 is a side view ofnose-piece lever, withdevices for moving it vertically and laterally.

The invention consists in the parts and combinations as hereinafterspecified and claimed, wherein A represents-the frame of the machine,

which may be of any suitable construction or material. Bis the camshaftcarrying main cog-wheel 0, the preferred proportions of which tothepinion P are as ten to one. It also carries cam-wheel D forstraightening nail-blank,

nail-blank. The cam c on wheel D is so formed that a slight primaryimpulse is given. to the mechanism for straightening the kink in thenail-blank until just before the finishing of a nail, when it suddenlyincreases, imparting a quick jerking motion, whereby the kink in thenail bl ank is sufficiently removed. E is the hammer-carryin g andhammer-operatic. g shaft. It is provided with two cylinders, f and h,rigidly attached and eccentricallyplaced to its axis, and thehammer-carrying cylinder g, centrically placed.

The purpose of cylinder f is to counterbalance the eccentricity ofcylinder h. Motion is imparted directly to the shaft E, which, throughthe medium of beveled gear lo and p and pinion P on shaft 0, impartsmotion to the main cog-wheel O on-shaft B. F is the revolving rollinghammer, whose shaft is journaled in short standards 9 projecting fromthe periphery of cylinder g. G is the pitman, which impartsmotion to theoscillating striking-hammer H. On one end of it is fixed the sleeve Z,which fits over the eccentrically-placed cylinder h, while the other endhas formed in it the socket 171. in which rests the pin 0 of thehammer-shank K. .H is the oscillating striking-hammer attached to itsshank K. I is the stationary hammer or die fixed to its shank or bracketK. ishank K is formed into two arms provided with sockets, in which workthe pinsaa as fast 'ened to the frame of the machine. It has also thepin 0, which works in the socket m of the pitman, as before stated.

L L are two standards fixed on the frame of the machine, in which restthe journals of shaft E. M is a crank on said shaft, to which the poweris applied. N is a bar, sliding in lbox Q or othersuitable bearing, andprovided at its slotted end with a small friction-wheel, a, or itsequivalent, whichbears against the surface of cam-wheel D, the cam ewhereof, when it comes in contact with the frictionwheel, causes the barto slide, and at the same time to move the griping-jaws U and V, withthe latter of which the sliding bar is connected by the rod to acorresponding distance. The

purpose accomplished by this will be hereinafter set forth. The spring1? or its equivalent, fixed to standard L and pressing against the Thelower part of the h.ammerinner end of the sliding bar, returns it to itsposition, when the cam c has passed beyond the friction-wheel n.

O is the shaft, which, through the medium of the beveled gear and pinionP thereon, transmits motion from shaft E-to B. R R are standards fixedon the frame of the machine for the support of shaft 0. S is the anviland cutter carrier pivoted at its lower end to the frame of the machine,and provided with opening J, through which the shaft B passes. Itcarries the anvil to and from other devices, which will be hereinafterdescribed. m and m are the stationary cutters, secured thereto near theanvil, as shown.

The reciprocating cutters l and l are attached and held in place asfollows: X is a plate or cutter handle, which slides in grooves in theanvil-carrier S, and has a top'plate, p. This top plate extends beyondboth sides of the handle X, but is even with the edges thereof. It israbbeted to one-half its thickness on the two edges at right angles tohandle X, and thus on each side a short groove is formed between handleand top plate. The cutters Z Z are placed herein, their upper and insideedges in contact with the rabbets, and a short part of their under side,near the middle, resting on the handle. A frame, j, is then passed overthe end of each cutter and its corresponding arm of the top plate, andby the screw 8 the cutter is firmly securd. To one side of theanvil-carrier at b is pivoted a lever, Y, having an arm, a. This leverfits into a notch of the cutter-handle X, and depresses it when the cama on shaft B comes in contact with the arm a. Depressing thecutter-handle of course depresses the cutter at its upper end. 0 is aspring, which presses the arm Y upward when cam 11 ceases tooperate,'and anadjustable stop, h, limits its return movement. Into theopening J of the carrier S projects the cam c, which operates inconnection with the cam 12 on shaft B.

When, in the operation of the machine, the two cams b and e cease tooppose each other,

' the anvil-carrier is drawn aside by means of a strong spring attachedto frame A, and connected with the carrier by rod t'. T is the leverwhich carries at its end the nose-piece 2. It rocks upon afulcrum placedin standard a, or it may be suitably journaled to the main frame, andhas a vertical movement induced by the link 1", which latter connects astout spring or strap, secured on lever T, with an arm of thehammer-shank. The extent of the vertical movement of the lever T can beregof lever T isregulated, and it is held in place by a spring attachedto the frame of the machine. A guard, 0, prevents the lever T frommoving beyond a certain point. This may be adjusted as desired. Thelever T has also a short arm, 20, extending laterally from its underside, which is acted on by the cam c on shaft B, for the purpose ofdropping the nosemoving it away from the spring or strap beforementioned.

U is the upper nail-blank griper, having on;

its under surface a pin, a, which projects through griper V, and isacted on bycam-lever or nail-blank releaser W, which, in turn,

is acted upon by cam 01 on shaft B, effecting the release of thenail-blank by lifting up griper U.

The lower nail-blank griperVfits in a groove wider than itself, so as toallow the requisite amount of lateral play to remove from the nail-blankthe kink formed during the operation of hammering.

The operation of the machine is as follows:

The nail-blank is presented to the anvil through the nose-piece z, andis held firmly by the gripers U and V. It receives its first stroke fromthe striking-hammer H, while being held a short distance above the anvilby the nose-piece, and at the instant the revolving rolling hammer is inthe elevated posi-V tion. A half-revolution of shaft E brings therolling-hammer into operation, and, through the medium of eccentriccylinder h, withdraws the striking-hammer, and, by means of link 4,lowers the nose-piece so that the nail-blank rests on the anvil. ing andeight by the striking hammer complete the hammering operation, which arede-' livered alternately with each other. At the instant of the eighthstroke by the strikinghammer, the cam e on wheel D operates thenail-blank gripers, forcing them outward, whereby the kink which hasbeen formed in the nail-blank between the anvil and gripers, by theprocess of hammering, is removed. Immediately succeeding this operation,the cam b on shaft B, and the cam e of the anvilcarrier, cease to opposeeach other, and the anvil-carrier is drawn aside by spring j. Thisbrings the hammered part of the nail-blank 'that has been formed intothe shape of a nail,

over the opening between anvil and movable cutter. At the next instant,the cam 0 on shaft B acts. to drop the nose-piece, bringing the nail inposition to be operated upon by Seven strokes by the rollthe cutters,which are at once brought into action by the cam a on shaft B, actingthrough the medium of lever Y on cutter-handle X, depressing the cuttersZ" l, which latter can be placed parallel to stationary cutters m m, orat an angle therewith, to produce a shearcut. The nail, thus severed atits head and point, drops out of the machine. At the instant that thecutters perform their part, the cam 01 on shaft B operates thenail-blank releaser W, which acts on the pin a of the griper U, raisingit from the surface of griper V, thus releasing the nail-blank, which isthen fed forward for another operation.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, with a striking-hammer and stationary hammer or die,of a revolving rolling-hammer and an anvil, vibrating in a planetransverse to the line of action of said rolling-hammer, substantiallyas and for the purpose described.

2. The combination, with a striking-hammer, a stationary hammer or die,and a re volving rolling-hammer, of an intermittentlyoscillating anviland cutter-carrier, constructed so that the cutters and anvil arealternately brought into operative position, substantially as and forthe purpose described.

3. In a horseshoe-nail machine, the combi nation, with the feed-lever T,carrying nosepiece z, of the stationary and striking hammers or dies,and the combined anvil and cutter-carrier, intermittingly vibrating atright angles to the plane of action of the revolving hammer,substantially as described.

4. The combination of cam-Wheel D, slide N, and griper-jaws U V,substantially as and for the purpose described.

5. The anvil-carrier S, having anvil Z, stationary cutters m m,cutter-holder X, lever oscillating anvil-carrier S, of thestationarycutters m m, and movable cutters Z Z, arranged so that thenail is cut simultaneously at head and point, substantially as and forthe purpose described.

9. The combination of gripers U V, nailblank releaser W, and shaft B,having cam 01, substantially as and for the purpose described.

10. The combination of nose-piece lever T with standard a and lever r,substantially as and for the purpose described.

11. The combination of shaft B, having cams a b c d, of anvil-carrier S,nose-piece lever T, and griper U, substantially as and for the purposedescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JAMES MILLS.

WVitnesses H. M. MITCHELL, J. D. KINGSLAND.

